All of us from YuLong proudly present the ADA1 (Amplifier Digital-to-analogue) with breaking through Dop 128 and PCM 384KHz support over SPDIF, very analogue sounding, and high performance-to-cost ratio all in one unit backed by our years of experience in sound refinement, design and creativity.

The input digital signal is buffered and shaped and then demodulated by Saviaudio SA8804 with its ultra low jitter reference clock, and the decoded by two AK4490s in mono mode for left and right channels respectively. Output buffer utilizes OPA1632 which impedance is low enough to drive headphones directly.

Precisely designed power supply and layout ensured very high S/N ratio and distortion specifications. A Plitron transformer supplies the power needed for different sections together with primary regulators followed by ADP124 precision low Low-dropout regulators (LDO). ADM7150 precision LDOs with only 1.0 μV rms noise level were used for the analogue reference voltage (V_Ref) for AK4490.

Optional WiFi module is powered by Saviaudio SA9800 which supports playing domestic music files on iOS or Android devices, or DLNA streams over computer or NAS. All these playbacks support DSD format and PCM up to 32Bit/384KHz.Optional WiFi module is powered by Saviaudio SA9800 which supports playing domestic music files on iOS or Android devices, or DLNA streams over computer or NAS. All these playbacks support DSD format and PCM up to 32Bit/384KHz.